The East Anglian Air Ambulance was called to Dunton Patch, near Fakenham, this lunchtime after a car and lorry collided leaving a woman trapped.
The crash happened on the A148, just before South Creake, at around 11.45am and the air ambulance arrived at around 12.20pm.
Fire crews from Fakenham and Lynn, an ambulance and police were called to the scene where the woman was found conscious and breathing, but had suffered leg injuries.
She was taken to hospital for further treatment.
There are no road closures in place.